Four Random Things
Friday, November 06, 2026
A Friday Hodgepodge
1. Alex Tabarrok shows off his "sky roomba" robotic window cleaner and makes a good economics point while he's at it.
I'm going to look into getting one of these...
2. A role-playing enthusiast, upon reading phrases like apply your full hp to the task in a text from a century ago knows that the abbreviation doesn't stand for hit points -- and makes the neat/amusing connection that:
a commonly used initialism from 1908 now stands for something different AND YET the contextual meaning is still the same to a 21st-century readerI, being older, might have realized the author meant horsepower, but I had never heard it used colloquially in such a way.
3. The same blogger also considers an [a]lternate timeline in which all Greek and Latin roots are swapped. I like the alterate term for television.
4. An attorney explains the origin of the annoying practice of following written numbers with Arabic numerals in parentheses.
In "Five (5) Reasons to Stop Writing Numbers Like This," Andrew Schrack notes that:
The convention originated with handwritten documents, in which it was easy for numbers to be confused. (I've personally had my scribbled "9" mistaken for a "7"). Numbers also could be altered easily by inserting extra numerals or attempting to transform a 3 into an 8. In fact, the easy alteration of numerals is the reason that we spell out the numbers on our checks (for those of us who still use checks). Still, numerals are easier to read at a glance, and so early legal writers included both.Schrack is correct that the practice is not just obsolete, but can create problems, such as less-legible documents and ambiguity.
(And now I know, and don't have to be content with merely laughing at the practice.)
-- CAV